756 
A. Valente et al.: A compilation of global bio-optical in situ data 
(a) 9C 
SC 
30 
3° | 
U 
60° | 
90°L— 
180° 
[b) 90‘ 
“4 ä . 
Anl 
Number of Observations of Chla 
120° 180° 
MAC 
30 
30 
) 
30° | 
sol 
90 — 
180° 
“- 
. 
Chla Average (mg m”) 
n° 50° 120° 
—+ 
180° 
‚C) 90 
Sa 
SU 
3U 
DD 
30° 
BO 
RE 
90°  — 
„480° 
——— 
„420° 
„6N° 
Chla Standard Deviation (mg m’) 
D° 60° 41920° 
180 
Figure 10. The chlorophyll-a (mg m?) data partitioned into 5° x 5° boxes showing (a) number of observations, (b) average value, and 
(c) standard deviation in each box. All chlorophyll data were considered, but for a given station, HPLC data were selected if available. In the 
standard deviation plot, grey colour boxes represent zero standard deviation (i.e. one observation). 
and AMT, can be listed under NOMAD). Nevertheless, the 
reported numbers still give a general view of the contribu- 
Jons from each data set and provide users with valuable in- 
formation for analysing each set of data separately. 
Observations of remote-sensing reflectance are available 
at 948 unique wavelengths (i.e. columns), between 313 
and 1022.1nm (Fig. 1). In total, there are 68 641 obser- 
vations (ie. rows) of remote-sensing reflectance. The to- 
tal number of observations are partitioned per contribut- 
zarth Syst. Sci. Data. 14. 5737-5770. 202. 
ing data sets as follows: AERONET-OC (34551), BOUS- 
SOLE (22620), MOBY (6034), NOMAD (3326), MER- 
MAID (895), SeaBASS (730), AWI (71), COASTCOLOUR 
(307), and TARA (107). Data from AERONET-OC, BOUS- 
SOLE, and MOBY correspond to continuous time series, and 
hence the higher number of observations. In comparison with 
che previous version (Valente et al., 2019), which had re- 
flectance data until 2018, the number of stations increased 
by -— 15% (ie. from 59781 to 68 641). The new data points 
httos://dol.org/10.5194/essd-14-5737-2022